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प्रश्न
The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is ___________
विकल्प
Velocity is uniform
Acceleration is uniform
Both velocity and acceleration are uniform
Neither velocity nor acceleration is uniform.
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उत्तर
The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is Acceleration is uniform.
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संबंधित प्रश्न
Give one example of a situation in which a body has a certain average speed but its average velocity is zero.
Name the physical quantity whose SI unit is :
(a) m/s (b) m/s2
Derive the formula : v = u + at, where the symbols have usual meanings.
Derive the following equations for uniformly accelerated motion:
(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
What do you understand by the term acceleration?
Multiple choice Question. Select the correct option.
The speed of a car reduces from 15 m/s to 5 m/s over a displacement of 10 m. The uniform acceleration of the car is :
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
How will the equations of motion for an object moving with a uniform velocity change?
An object starting from rest travels 20 m in the first 2 s and 160 m in the next 4 s. What will be the velocity after 7 s from the start?
An electron moving with a velocity of 5 × 104 ms−1 enters into a uniform electric field and acquires a uniform acceleration of 104 ms–2 in the direction of its initial motion.
(i) Calculate the time in which the electron would acquire a velocity double of its initial velocity.
(ii) How much distance the electron would cover at this time?
